Steel Plate Rolling Machine

Rolling machine in sheet metal processing is used to roll the flat plate into cylindrical, curved and other different shapes, the precise adjustment of the roller clearance is the key to ensure the quality of the roll. Reasonable roller clearance can avoid plate surface scratches, to ensure that the rolled size meets the requirements, to extend the service life of the equipment. To master the correct adjustment method, you need to follow the steps in an orderly manner. 

Before adjusting the roller gap, full preparations should be made. First of all, cut off the power supply of the coiler to ensure that the equipment is in a state of shutdown, and hang warning signs to prevent misuse of the start-up equipment to bring potential safety hazards. Then, clean up the working area of the coiler, remove the debris around the equipment and the plate to be processed, leaving enough space for the adjustment operation.

At the same time, prepare the tools needed for adjustment, such as a plug ruler, wrench, and percent gauge. Plug ruler is used to measure the size of the roller gap, wrench is used to unscrew the adjusting bolt, and the percentage meter can more accurately detect changes in the gap. In addition, it is also necessary to consult the equipment manual to understand the type of rolling machine roller clearance standard range and adjustment requirements, to provide a basis for adjustment work.

When adjusting the roller clearance of the plate rolling machine, the following steps are usually followed. First of all, a preliminary inspection of the equipment, observe the roller surface whether there is wear, scratches and other abnormalities, if there is serious wear, you need to repair or replace the rollers first, and then adjust the gap.

Take the symmetrical three-roller plate rolling machine as an example, to adjust the gap between the lower roller and the upper roller, use a wrench to loosen the lock nuts of the adjusting bolts on both sides of the lower roller, and change the position of the lower roller by turning the adjusting bolts.

During the adjustment process, use a plug gauge inserted between the rollers to measure the gap values at different positions several times to ensure uniformity of the gap. After each adjustment, tighten the lock nut to prevent the gap from changing after adjustment.

After adjustment, you can use the percentage meter to further test the gap accuracy, fix the percentage meter on the frame of the rolled plate machine, so that the table head and the roller surface contact, slowly rotate the roller, observe the percentage meter reading changes, according to the readings again fine-tuning, until the gap reaches the standard range.

For four-roller coiler, in addition to adjusting the upper and lower roller gap, but also need to adjust the gap between the side rollers and the upper and lower rollers to ensure that the plate in the rolling process of force uniformity, the adjustment method is similar to the upper and lower rollers gap adjustment, through the adjustment of the position of the side rollers and the corresponding bolts to control the size of the gap. 

In the process of adjusting the roller gap of the plate rolling machine, there are many precautions. Operation should maintain patience and care, each time the magnitude of the adjustment should not be too large, to avoid over-adjustment of the gap is too large or too small, affecting the effect of rolling.

If the gap still can not meet the standard requirements after adjustment, it is necessary to re-check the adjustment steps and the state of the equipment, and investigate whether there is damage to the adjustment bolts, roller installation position deviation and other problems.

In addition, different materials and thickness of the plate, the roller clearance requirements are different, before processing should be based on the actual situation of the plate, reasonable adjustment of the clearance. For example, the processing of thinner plates, the gap should be appropriately adjusted down; processing thicker plates, the gap needs to be increased accordingly. After the completion of the adjustment, the equipment for test run, no-load operation for a period of time, observe whether the equipment runs smoothly, there is no abnormal sound, confirm that the equipment is normal, and then carry out plate rolling processing. 

Mastering the correct adjustment method of the roller gap of the coiler is an important link to ensure the efficient and stable operation of the coiler and the quality of the roll. Through adequate preparation, standardized adjustment steps and strict control of precautions, the roller gap can be in the best state to meet the needs of different plate rolling, and improve processing efficiency and product quality.

If you are interested in plate rolling machine, please contact us.